
Warrior Air Compressor
OPERATION MAMUAL
AC Series
PLEASE READ AND BE FAMILIAR WITH THE INSTRUCTION MANUAL
BEFORE OPERATION. FAILURE TO DO SO MAY RESULT IN SERIOUS
INJURY OR DAMAGE TO THE AIR COMPRESSOR.

1. MAIN COMPONENTS (Fig.1)
⑴ Main compressor
⑵ Pressure switch
⑶ Outlet Valve
⑷ Regulating Valve
⑸ Pressure gauge
⑹ One-way Valve
⑺ Drain cock
⑻ Wheel
⑼ Discharge pipe
⑽ Air tank
⑾ Safety valve
⑿ Fan cover
2. MAIN TECHINICAL PARAMETER

3. PREPARATION FOR STARTING
⑴ Check all bolts and nuts. Make sure all parts that are
loose must be tightened.
⑵ The place to set the compressor should be clean, dry
and ventilated.
⑶ Keep the using voltage within ±4% of the rated.
⑷ Keep the oil level in the red circle of the oil leveler.
⑸ Recommend SAE30 or L-DAB100 over 10℃, and use
SAE10 or L-DAB68 below 10℃ of the compressor oil.
⑹ Open the outlet valve, set the knob of pressure switch in
position on (Fig.2), let the compressor run 10 minutes with
no load to ensure lubricating the moving parts before
regular service.
4. OPERATION AND ADJUSTMENT
⑴ The compressor is controlled by a pressure switch on start up. It will stop
automatically as pressure increases to the maximum
and restarts automatically as pressure decreasing to
the minimum. The rated pressure has been factory set
and MUST not be altered. As soon as motor is
switched off, the compressed air in the discharge pipe
should be released through the pressure release valve.
This is a necessary proceedure for the restart or
storage as the motor could result in damage.
⑵ The output pressure of compressed air can be
adjusted by the regulating valve. Pull up the knob of
regulation valve and turn it clockwise to increase and
counter clockwise to decrease the pressure (Fig.3).
⑶ When the compressor in running and is needed to be stopped press the ON/OFF
switch to the OFF position.
5. CAUTIONS
⑴ Before compressor is started and ran you MUST
install Air Filter and oil hole plug (Breather pipe)
(Fig.4).
⑵ Never unscrew any parts or take out oil hole plug
in a pressurised condition or when in operation.
⑶ Never disassemble any electrical part before
disconnecting the plug from the mains.
⑷ Never adjust the safety valve.
⑸ Never use the compressor in place where voltage is too low or too high.
⑹ Never use an extension electric lead more than 5m long with less than 1.5mm2 core.

⑺ Never disconnect the plug to stop compressor, set the switch knob to the OFF
position.
⑻ If the release valve doesn’t work when motor stopped, find the cause immediately so
as not to damage motor.
⑼ Lubricating oil must be clean, oil level should be kept in red circle of the oil leveler.
⑽ Before restarting the motor press the reset button and check the air
compressor carefully, check the pressure in the air tank and make sure it is under 0.8Mpa.
⑾ Always disconnect the plug to cut off power supply and open the outlet valve and
discharge all air in the air tank after use.
6. MAINTENANCE
⑴ Before maintenance operation, stop the air compressor, cut off power supply and
discharge all air in the air tank.
⑵ Clean crank case and renew lubricating oil after the first 10 working hours.
⑶ Check the oil level after every 20 working hours,
and replenish if necessary (Fig.5).
⑷ Clean crank case and renew the oil, clean air
filter every three months.
⑸ Open the drain cock under the tank to exhaust
the condensation after every 60 working hours but
less than every 7 days.
⑹ Check the safety valve and pressure gauge by
professional organization every 6 months and make
sure they are in correct condition.
⑺ Make sure there is no rust on the air tank and the air tank is not damaged.
⑻ Check the thickness of the air tank by professional organization every year and
make sure the thickness is not less than 2.1mm.

Motor unable
Run or running too
slow, or
overheating
⑴ Fault in line, or voltage insufficient
⑵ Power wire too thin or too long
⑶ Fault in pressure switch
⑷ Fault in motor
⑸ Sticking of main compressor
⑴ Check the line
⑵ Replace the wire
⑶ Repair or replace
⑷ Repair or replace
⑸ Check and repair
Sticking of
main
compressor piston
⑴ Moving parts burnt due to low oil
level
⑵ Moving parts damaged or stuck by
foreign body
Check crankshaft, bearing,
connecting rod, piston, piston
ring, etc. and replace if
necessary
Terrible vibration
or abnormal
noise
⑴ Connecting part loosed
⑵ Foreign body got into main
compressor
⑶ Piston knocking valve seat
⑷ Moving parts seriously worn
⑴ Check and retighten
⑵ Check and clean away
⑶ Replace with thicker
paper gasket
⑷ Repair or replace
Insufficient Pressure or
Discharge capacity
decreased
⑴ Motor running too slow
⑵ Air filter clogged up
⑶ Leakage of safety valve
⑷ Leakage of discharge pipe
⑸ Sealing gasket damaged
⑹Valve plate damaged, carbon buildup
or stuck
⑺ Piston ring and cylinder worn or
damaged
⑴ Check and remedy
⑵ Clean or replace the
cartridge
⑶ Check and adjust
⑷ Check and repair
⑸ Check and replace
⑹ Replace and clean
⑺ Repair or replace
The oil
consumption
too excessive
⑴ Oil level too high
⑵ Breath pipe clogged up
⑶ Piston ring and cylinder worn or
damaged
⑴ Keep the level within
set range
⑵ Check and clean
⑶ Repair or replace